Receiver and reheater for compound engines.



No. 790.284. PATENTED MAY 23,1905.

EEUEGEE & H. M. WILLIAMS. RECEIVER AND RBHEATER FOR COMPOUND ENGINES.

APPLICATION FILED Mn 26, 1900. I

2 SHEETS-SHEET 1.

witnesses No. 790.284. y -PATENTED-MAY 23, 1905. R URGER & H. M. WILLIAMS. RECEIVER AND RBHBATER FOR COMPOUND ENGINES.

APPLIUATION FILED MAY 26, 1900- 2 SHEETS-SHEET 2.

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UNITED STATES Patented May 23, 1905.

PATENT OFFICE.

FRANZ BURGER AND HENRY M. WILLIAMS, OF FORT WAYNE, INDIANA; SAID BURGER ASSIGNOR OF ONE-HALF OF HIS ENTIRE RIGHT TO SAID WILLIAMS.

RECEIVER AND I REHEATER FOR'C OMPOUND ENGINES.

SPECIFICATION forming part of Letters'Patent No. 790,284, dated May 23, 1905,

Application filed May 26, 1900- Serial No. 18,116.

To all whom 212 may concern:

Be it known that we, FRANZ BURGER and HENRY" M. WILLIAMS, citizens of the United States, residing at Fort Wayne, in the county of Allen and State of Indiana, have invented certain new and useful Improvements in Receivers and Reheaters for Compound Engines, of which the following is aspecification.

Our invention relates to compound engines,

and more especially to those for use in locomotives; and our invention consists in constructing such engines, as fully set forth hereinafter, so as to prevent the cooling of the exhaust between the high-pressure and low- I5 pressure cylinders.

In the accompanying drawings, Figure 1 is a transverse sectional elevation through the cylinders, boiler, and intermediate chamber;

Fig. 2, a sectional View through the parts shown in Fig. 1 on the line I); Fig. 3, a sectional view on the line a.

A represents the boiler, B the high-pres sure cylinder, and G the low-pressure cylinder, of a locomotive-engine, the cylinder B 2 5 having a valve-casing B and the cylinder G a valve-casing G, with any suitable arrangement of inlet and outlet ports, so that the lowpressure cylinder may receive the exhauststeam from the high-pressure cylinder.

C is a superheater of any suitable character. As shown, it is a steam-coil arranged in the combustion-chamber 3, so as to be subjected to the products of combustion until they have passed through the tubes of the boiler whereby to highly heat the steam passing through the same, so that it shall enter the high-pressure cylinder in amuch more highly superheated condition than with the usual construction. The superheating-coil, however, does 40 not extend directly to the high-pressure cylinder, but connects with a coil 4 in a chamber 5 within what we term a receiver D, the same being a casing united with the cylinders and formed into a saddle for the boiler A. The coil 4 communicates with the throttle-valve casing '10, and thethrottle-valve casing also communicates with the valve-casing B, so that the steam from the coil 4 may pass from the throttle-valve casing to the inletports of the high-pressure cylinder. The outlet-port m of the high-pressure cylinder communicates with a passage leading to a nozzle which the exhaust-steam from the chamber 5 can pass through the inlet-port of the lowpressure cylinder Gr. By thus passing the exhaust-steam from the high-pressure cylinder over a heater and reheating the same it is caused to enter the low-pressure cylinder at a much higher temperature than would otherwise be the case and can be used with better expansive effect, and this result is further increased by using highly-superheated steam in the first instance for supplying the high-pressure cylinder, as the exhaust from the highpressure cylinder in such case passes to the low-pressure cylinder at a higher temperature than that of the live steam in the high-pressure cylinder in apparatus of the ordinary construct-ion.

It is sometimes desirable to direct the exhaust-steam from the high-pressure cylinder directly to the exhaust Without passing it to the low-pressure cylinder, and we therefore provide the high-pressure cylinder with an exhaust-passage w,communicating with an independent channel 0, leading to the exhaust pipe or nozzle 12 in the combustion-chamber to'conduct the exhaust-steam from the high to the low pressure cylinder, a coil within said chamber communicating With the high-pressure cylinder, and a superheatercommunicating with said coil, substantially as described.

5 2. Theeombination with the boiler and the high and the low pressure cylinders of a locomotive-engine,of a chamber arranged between said cylinders below the boiler and communicating with the low-pressure cylinder, a coil 10 within said chamber communicating with the high-pressure cylinder, and asuperheater located in the combustion-chainber of the boiler and communicating with said coil, substantially as described.

In testimony whereof we have signed our 5 names to this specification in the presence 01 two subscribing witnesses.

FRANZ BURGER. HENRY M. \VlLLlAMS.

Witnesses:

G150. D. CRANE, J. BURGER. 

